Fix chapter 1-4 names, whitespace

chapters/chap01-setup-starting.rst

@@ -4,7 +4,7 @@ WTF is happening?
 
 .. note::
 
-    This version is not the current build. You can still learn how to play DF with this tutorial and you will learn enough to play the new build. 
+    This version is not the current build. You can still learn how to play DF with this tutorial and you will learn enough to play the new build.
 
 
 Dwarf Fortress is an extremely interesting and complex game, but one which people find exceptionally difficult to get into. Although it isn’t hard to find tutorials, many assume some basic knowledge of the interface and what the player is looking at. They also don’t take into account different tilesets and versions and the difficulty new users have in finding a good site for that first fortress.

chapters/chap03-recap-home.rst

@@ -115,4 +115,4 @@ That’s all for now, except before I go I have some **homework** for you. But d
 #. See if you can make some stone crafts. You will find them under the “rock” sub-menu from the “add task” menu on the craftsdwarf’s workshop. You better make sure you have lots of wood bins for your crafts to go in though, and a big “Finished goods” stockpile too!
 
 Good luck! And see you soon!
-    
+

chapters/chap04-crafts-farming.rst

@@ -146,4 +146,4 @@ That’s all for now. We’ve got traders in our trade depot and we need to sort
 
 Until then go make a bunch of crafts, get the booze flowing and wait on my return!
 
-    
+